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TER PIPING DIAGRAMS
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ONE WATER HEATER, SINGLE TEMPERATURE WITH HORIZONTAL STORAGE TANK FORCED RECIRCULATION WITH BUILDING RECIRCULATION
NOTES:
1.
Preferred piping method
.
2.
The temperature and pressure relief valve setting shall not exceed pressure rating of any component in the system.
3.
Service valves are shown for servicing unit. Howeve
r,
local codes shall govern their usage.
4.
The tank temperature control should be wired to and control the pump between the water heater(s) and the storage tank(s).
5.
The water heater
’s
operating thermostat should be set 5 degrees F higher than the tank temperature control.
LEGEND
TEMPERA
TURE &
PRESSURE RELIEF V
A
L
V
E
PRESSURE RELIEF V
A
L
V
E
CIRCULA
TING PUMP
TEMPERA
TURE CONTRO
L
PROBE
DRAIN
FULL
POR
T
BALL
V
A
L
V
E
TEMPERA
T
URE GAGE
W
A
TER FLOW SWITCH
CHECK V
A
L
V
E
W
ARNING:
THIS DRA
WING SHOWS SUGGESTED
PIPING CONFIGURA
TION
AND OTHER DEVICES;
CHECK WITH LOCAL
CODES
AND ORDINANCES
FOR ADDITIONAL
REQUIREMENTS.
ANY
MA
TERIAL, COMPONEN
T
OR VENDOR CHANGE
MUST
HA
VE PRIOR
APPROV
AL
BY
THE
APPLICABLE
PRODUCT
ENGINEERING DEP
AR
TMENT
.
FINISHED
FLOOR
HOT WATER
RETURN
PIPE T&P TO
OPEN DRAIN
HOT
WATER
TO FIXTURES
CIRCULATING
PUMP
ALTERNATE
LOCATION
COLD WATER
SUPPLY
EXPANSION
TANK
ST
ORAGE T
ANK
Summary of Contents for 500
Page 66: ...66 WIRING DIAGRAM Figure 58 ...
